Wrong ethernet port link speed in network map

[derekakelly]

Hello,

I already posted this is in the ASUS AX Routers & Adapters (Wi-Fi 6/6e) sub-forum, but it was suggested I repost it here.

Since my original post, I have updated to 388.2 and I'm still seeing the same thing. I didn't bother to update the screenshot.

It's not a huge issue, but it sticks out like a sore thumb every time I open the router's interface...

Original Post:
https://www.snbforums.com/threads/rt-ax56u-ethernet-port-speed-incorrectly-listed.84398/

---

Two of my ports have been reading at 100 mbps in the router interface, but run at 1 gb.

However they are both operating at faster speeds, as proven by a speed test run off my Ubuntu NAS.

Speedtest by Ookla
ISP: Verizon Fios
Idle Latency: 4.53 ms (jitter: 0.21ms, low: 4.28ms, high: 4.98ms)
Download: 853.13 Mbps (data used: 668.6 MB)
4.08 ms (jitter: 1.03ms, low: 2.44ms, high: 6.31ms)
Upload: 940.64 Mbps (data used: 1.1 GB)
4.25 ms (jitter: 0.39ms, low: 3.20ms, high: 15.04ms)

My nas is in port 3, and a 1gbit switch is connected to port 4, with among other things, connects to my main workstation, which gets similar speed test results.

I have tried switching ports, and cables already.

 

[derekakelly]

I've tried switching the port, and regardless my NAS, and switch always read 100mbps, when they are definitely giving me gigabit speeds. I've tried different ports, cat 5e, cat 6, factory cables, and even custom cables.

 

[ColDen]

I've tried switching the port, and regardless my NAS, and switch always read 100mbps, when they are definitely giving me gigabit speeds. I've tried different ports, cat 5e, cat 6, factory cables, and even custom cables.

Have you also try them with port 1 and/or 2 or only between 3 and 4?

 

[derekakelly]

Have you also try them with port 1 and/or 2 or only between 3 and 4?

Yes, I've tried switching the ports. Also, the two that read 1G are my ps5 and my TV.

 

[Tech9]

This is coming from Asuswrt base. There is a new Asuswrt-Merlin 388.2 firmware for your router based on much newer GPL.

Asuswrt-Merlin - Browse /RT-AX56U/Release at SourceForge.net

Alternative firmware for Asus wireless routers

sourceforge.net

 

[ColDen]

Yes, I've tried switching the ports. Also, the two that read 1G are my ps5 and my TV.

On my GT-AX6000 I had port 2 that was reporting the wrong speed (also 100 Mbps), try several cables but it turned out that it was a small union connector (the other computer was located in a different room and because of the distance had to use two interconnected cables) that was deffective and once replaced by a spare one, bingo, port 2 turned green and showed 1 Gbps).

 

[derekakelly]

how is this information obtained for the dashboard?

This is coming from Asuswrt base. There is a new Asuswrt-Merlin 388.2 firmware for your router based on much newer GPL.

Asuswrt-Merlin - Browse /RT-AX56U/Release at SourceForge.net

Alternative firmware for Asus wireless routers

sourceforge.net

I just updated it, and tested it again prior to posting. I just didn't update my screenshot

 

[derekakelly]

On my GT-AX6000 I had port 2 that was reporting the wrong speed (also 100 Mbps), try several cables but it turned out that it was a small union connector (the other computer was located in a different room and because of the distance had to use two interconnected cables) that was deffective and once replaced by a spare one, bingo, port 2 turned green and showed 1 Gbps).

They're all right next to each other. Single cables between them, nothing interconnected. It also doesn't matter which port I plug them into. My TV and ps5 always come up as 1gbps, my switch and Nas always come up as 100mbps.

Does anyone know the underlying tool used to get that information? Maybe there's some logs I can check or other command line options to get more info.

 

[Dedel66]

My TV and ps5 always come up as 1gbps, my switch and Nas always come up as 100mbps.

I suggest testing the NAS, which is incorrectly displayed on the Asus router, on another gigabit switch. What bandwidth is displayed there?

 

[RMerlin]

Does anyone know the underlying tool used to get that information?

It's not a tool. Asus are querying the switch through Broadcom's APIs.

 

[derekakelly]

I suggest testing the NAS, which is incorrectly displayed on the Asus router, on another gigabit switch. What bandwidth is displayed there?

My NAS is directly connected to my router and speed tests clearly show i'm getting 1Gbps

I just checked what speed Ubuntu was reporting in my NAS, and it's showing 1000

$ sudo ip addr | grep qlen
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
2: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000

 

[drinkingbird]

They're all right next to each other. Single cables between them, nothing interconnected. It also doesn't matter which port I plug them into. My TV and ps5 always come up as 1gbps, my switch and Nas always come up as 100mbps.

Does anyone know the underlying tool used to get that information? Maybe there's some logs I can check or other command line options to get more info.

If you ssh in what speed does it show in the CLI?

 

[derekakelly]

from router ssh

/tmp/home/root# ip addr | grep qlen
2: ifb0: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN group default qlen 32
3: ifb1: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN group default qlen 32
4: imq0: <NOARP> mtu 16000 qdisc noop state DOWN group default qlen 11000
5: imq1: <NOARP> mtu 16000 qdisc noop state DOWN group default qlen 11000
6: imq2: <NOARP> mtu 16000 qdisc noop state DOWN group default qlen 11000
13: bcmsw: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
14: eth0: <BROADCAST,MULTICAST,ALLMULTI,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
15: eth1: <BROADCAST,MULTICAST,ALLMULTI,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br0 state UP group default qlen 1000
16: eth2: <BROADCAST,MULTICAST,ALLMULTI,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br0 state UP group default qlen 1000
17: eth3: <BROADCAST,MULTICAST,ALLMULTI,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br0 state UP group default qlen 1000
18: eth4: <BROADCAST,MULTICAST,ALLMULTI,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br0 state UP group default qlen 1000
19: spu_us_dummy: <NOARP,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN group default qlen 100
20: spu_ds_dummy: <NOARP,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN group default qlen 100
22: eth5: <BROADCAST,MULTICAST,ALLMULTI,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br0 state UP group default qlen 1000
23: eth6: <BROADCAST,MULTICAST,ALLMULTI,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br0 state UP group default qlen 1000
25: wl0.1: <BROADCAST,MULTICAST,ALLMULTI,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br1 state UNKNOWN group default qlen 1000
26: wl0.2: <BROADCAST,MULTICAST,ALLMULTI,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br0 state UNKNOWN group default qlen 1000
27: wl0.3: <BROADCAST,MULTICAST,ALLMULTI,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br0 state UNKNOWN group default qlen 1000
28: wl1.1: <BROADCAST,MULTICAST,ALLMULTI,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br2 state UNKNOWN group default qlen 1000
43: tun21: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000

what are spu_us_dummy & spu_ds_dummy? they're the only ones listed at 100

 

[derekakelly]

/tmp/home/root# ifconfig -a
.......
eth3 Link encap:Ethernet HWaddr xxxxxxxxx
UP BROADCAST RUNNING ALLMULTI MULTICAST MTU:1500 Metric:1
RX packets:3996629 errors:0 dropped:108 overruns:0 frame:0
TX packets:10534133 errors:0 dropped:358 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:805577111 (768.2 MiB) TX bytes:14461745763 (13.4 GiB)

........

eth4 Link encap:Ethernet HWaddr xxxxxxxxx
UP BROADCAST RUNNING ALLMULTI MULTICAST MTU:1500 Metric:1
RX packets:57177686 errors:0 dropped:122 overruns:0 frame:0
TX packets:40682745 errors:0 dropped:4871 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:60079413020 (55.9 GiB) TX bytes:34083019608 (31.7 GiB)

.........

 

[Martinski]

My NAS is directly connected to my router and speed tests clearly show i'm getting 1Gbps

I just checked what speed Ubuntu was reporting in my NAS, and it's showing 1000

$ sudo ip addr | grep qlen
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
2: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000

You seem to be confusing "qlen" with link speed. The "qlen" in your output is the transmit (tx) queue length set for the device/interface measured in number of packets; it does *not* indicate its link speed.

 

[derekakelly]

You seem to be confusing "qlen" with link speed. The "qlen" in your output is the transmit (tx) queue length set for the device/interface measured in number of packets; it does *not* indicate its link speed.

You're right, my mistake, i had just done a quick search to find the command.

This seems more like what I was looking for.

$ sudo mii-tool -v eno1
eno1: negotiated 1000baseT-FD flow-control, link ok
product info: vendor 00:aa:00 or 00:55:00, model 10 rev 0
basic mode: autonegotiation enabled
basic status: autonegotiation complete, link ok
capabilities: 1000baseT-FD 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
advertising: 1000baseT-FD 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control
link partner: 1000baseT-FD 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control

 

[Martinski]

You're right, my mistake, i had just done a quick search to find the command.

This seems more like what I was looking for.

If you have Entware installed on a USB-attached disk on your router, you can install the ethtool utility:

opkg install ethtool-full

This tool will give you information about the link speed. For example:

EDIT:
There's also a built-in command in the router that gives you the link speed:

ethctl eth0 media-type

 

[Dedel66]

My NAS is directly connected to my router and speed tests clearly show i'm getting 1Gbps

I just checked what speed Ubuntu was reporting in my NAS, and it's showing 1000

Why are you reluctant to do a simple test with another external switch to see what bandwidth it is showing?

 

[OzarkEdge]

It's not a huge issue

Indeed... my favorite trouble... easily ignored and will eventually go away on its own.

OE

 

[drinkingbird]

You're right, my mistake, i had just done a quick search to find the command.

This seems more like what I was looking for.

If cli shows 1G it is a GUI bug. Just gotta wait until it gets fixed.